City Of Columbia Wastewater Treatment Plant
1244 Treatment Plant Road, Columbia, TN 38401 · Maury County · Publicly Owned Treatment Works
- Average flow
- 5.33 MGD
- Design flow
- 10 MGD
- NPDES permit
- TN0056103
- Effective
- Permit expires
- October 2028
- Population served
- 39,515
- CWNS 2022
City Of Columbia Wastewater Treatment Plant is a publicly owned wastewater treatment works in Columbia, Maury County, Tennessee treating an average of 5.33 million gallons per day against a permitted design capacity of 10 MGD, serving about 39,515 residents. It discharges under NPDES permit TN0056103 (effective), which expires in October 2028, with 68 recorded violations in the last three years. EPA has recorded 3 formal enforcement actions naming the plant, the latest in April 2018.
Treatment technology
One treatment structure or unit process identified at City Of Columbia Wastewater Treatment Plant.
Available with a free Klarifi account
See the full treatment train at City Of Columbia Wastewater Treatment Plant: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 68
- Effluent violations
- 68
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for City Of Columbia Wastewater Treatment Plant in EPA's ICIS system.
- Formal actions
- 3
- 0 since FY2020
- Penalties assessed
- $76,800
- all cases
- Compliance actions
- $1.3M
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Apr 2018
COLUMBIA, TENNESSEE, CITY OF
Administrative order · CWA, NPDES Permit Violations · Superseded by Another Enforcement Action · Compliance actions $1.3M
Source: EPA ECHO, civil enforcement case 04-2014-4752.
Full case history with a free Klarifi account
Every action against City Of Columbia Wastewater Treatment Plant with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Capital improvement projects in Columbia
Columbia's capital improvement plan lists 5 water, sewer and wastewater line items worth $93M starting 2025–2026. The largest budgeted items are shown here.
All water and sewer capital projects in Columbia →
| Project | Budget | Years |
|---|---|---|
| Wastewater Treatment Plant | $82,000,000 | 2026–2028 |
| Bear Creek Pike Station Upgrade | $8,255,000 | 2025–2025 |
| Vehicles & Equipment | $1,503,500 | 2026–2030 |
| Duck River Station Upgrade | $1,250,000 | 2025–2025 |
| MIS Computer/Tech Replacement Schedule | $97,900 | 2026–2030 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
2 verified contacts for City Of Columbia Wastewater Treatment Plant, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at City Of Columbia Wastewater Treatment Plant, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Tennessee
Spring Hill · 11 mi away
3.83 MGD
Franklin · 18 mi away
0.0032 MGD
Thompson'S Station · 18 mi away
0.0069 MGD
Lynnville · 21 mi away
0.0012 MGD
Lewisburg · 21 mi away
2.07 MGD
Chapel Hill · 22 mi away
0.09 MGD
Centerville · 24 mi away
0.27 MGD
Franklin · 24 mi away
9.77 MGD
City Of Columbia Wastewater Treatment Plant: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed October 26, 2026; facility record last updated May 25, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms